.container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    overflow: hidden;
    background: #f2f3f4;
}
.list {
    position: absolute;
    top: 80px;
    bottom: 0;
    width: 100%;
    background: white;
}
.item {
    font-size: 24px;
    padding: 20px 10px;
}